About SQL Query in VB.Net

Hello everybody,
I Want to use the SQL query given below
"SELECT * FROM tblEmployees WHERE (EmpName, EmpCity) = '" & txtNameAndCity.text & "'"

Where txtNameAndCity.text = Vishal, Delhi

Here I get the following error
Syntax error (comma) in query expression '((EmpName, EmpCity) = 'Vishal, Delhi')'.

Actually I have the name and city combined (not Different),
So what should be my SQL Query

Does any one know the answer

Thank You